8
3M
™ Multi-Touch ASIC Controller Reference Guide
3M Touch Systems, Inc. Proprietary Information
CH APTER 2
Integrating the 3M™ Multi-Touch Controller
PX5nnn
The 3M
PX5nnn
controllers provide a functional equivalent touch controller with wide
dynamic range, increased noise immunity, wide operating temperature stability,
reprogrammability using software utilities and improved capability in ungrounded
environments.
The firmware for the 3M
PX5nnn
controller is optimized for projected capacitive sensors
integrated in the latest flat panel displays. The performance is controlled by firmware and
can be customized for user applications.
This chapter covers the following 3M
PX5nnn
controller specifications:
•
Cable connections
•
Mounting requirements
•
Power requirements and options
Overview of the 3M PX5nnn Controllers
The 3M
PX5nnn
controller has a built-in Universal Serial Bus (USB) full speed interface
and a plug and play RS232 interface. A full speed USB interface has a data rate of 12
Mb/s.
To integrate and test the 3M
PX5nnn
controller, you need the following items:
•
A 3M™ Multi-Touch Projected Capacitive Sensor
•
A method of establishing the data communication between the controller and your
system.
•
A method of powering the controller
•
Many operating systems, including Microsoft
®
Windows
®
and Linux
®
, naturally
provide support to the touch controllers – No additional software is needed. Contact
3M Touch Systems if you need support.
